Thanks Middleaged for reminding me of the definition below. So important to Occupy movement that we learn over time through practice how this works so we can further grow the movement and the revolution of the mind.

A meme (pron.: /ˈmiːm/; meem)[1] is "an idea, behavior or style that spreads from person to person within a culture."[2] A meme acts as a unit for carrying cultural ideas, symbols or practices, which can be transmitted from one mind to another through writing, speech, gestures, rituals or other imitable phenomena. Supporters of the concept regard memes as cultural analogues to genes in that they self-replicate, mutate and respond to selective pressures.[3] Examples of memes given in the book included melodies, catch-phrases, fashion and the technology of building arches.[6]

Memes spread through the behaviors that they generate in their hosts. Memes that propagate less prolifically may become extinct, while others may survive, spread and (for better or for worse) mutate. Memes that replicate most effectively enjoy more success, and some may replicate effectively even when they prove to be detrimental to the welfare of their hosts.[7]

A field of study called memetics[8] arose in the 1990s to explore the concepts and transmission of memes in terms of an evolutionary model. Criticism from a variety of fronts has challenged the notion that academic study can examine memes empirically. However, developments in neuroimaging may make empirical study possible.[9]
Dawkins used the term to refer to any cultural entity that an observer might consider a replicator. He hypothesised that one could view many cultural entities as replicators, and pointed to melodies, fashions and learned skills as examples. Memes generally replicate through exposure to humans, who have evolved as efficient copiers of information and behaviour. Because humans do not always copy memes perfectly, and because they may refine, combine or otherwise modify them with other memes to create new memes, they can change over time.

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Memes are powerful, infectious ideas, once you know something, it is difficult to un-know it. When you feel strongly about something, you will tell others, others will also learn about your knowledge by observing your actions, and refusals to act in certain ways. Memes lead to tipping points when revolutionary change becomes inevitable. Ideas can not be killed.

Thanks. I have to soak this in a little for a couple of days I think. Dawkins is a geneticist or biologist ... and he has taken this idea from his work in science and created this Big Idea about human growth or cultural evolution.